Effect of Zirconium addition on crack, microstructure and mechanical behavior of selective laser melted Al-Cu-Mg alloy

被引：362

作者：

Zhang, Hu ^{[1
]}

Zhu, Haihong ^{[1
]}

Nie, Xiaojia ^{[1
]}

Yin, Jie ^{[1
]}

Hu, Zhiheng ^{[1
]}

Zeng, Xiaoyan ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

来源：

SCRIPTA MATERIALIA | 2017年 / 134卷

基金：

中国国家自然科学基金;

关键词：

Selective laser melting; Aluminum alloys; Zirconium; Microstructure; Mechanical properties; ALUMINUM-ALLOY; STRENGTH; ALSI10MG;

D O I：

10.1016/j.scriptamat.2017.02.036

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Selective laser melting (SLM) was used to fabricate Al-Cu-Mg alloy and Zirconium-modified Al-Cu-Mg alloy components. The hot-cracking phenomena during the SLM process was significantly reduced by the grain refining effect caused by the addition of Zr. Compared to the Al-Cu-Mg part, the Zr-modified Al-Cu-Mg part with the ultrafine grain exhibits increased yield strength (446 +/- 4.3 MPa) and ultimate tensile strength (451 +/- 3.6 MPa). These findings provide a basis for innovative alloy design for SW. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6 / 10

页数：5

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